Volume Control Device for Electronic Musical Instruments
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic musical instruments face issues with inconsistent sound volume due to differences in sound settings, leading to inappropriate audibility even with similar volume settings.
Innovation Solution
A volume control device that includes an information processor to acquire sound settings based on sound source information, generate sound output signals, and apply a correction setting to adjust the volume according to the volume feeling, thereby ensuring more appropriate sound output across various patches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If volume settings are applied uniformly across different patches, then the device complexity is reduced and ease of operation is improved, but the auditory volume feeling becomes inconsistent across patches
Solution Approach 1:
The patent applies parameter changes by introducing a correction amount that modifies the base volume setting for each patch. The information processor changes the volume parameter dynamically based on the specific patch being played, applying different correction amounts to achieve consistent auditory volume feeling across patches with different sound sources and settings.
Solution Approach 2:
The patent implements feedback by calculating the difference between the auditory volume feeling of each patch and a reference volume feeling. The information processor uses this feedback information to determine appropriate correction amounts, continuously adjusting volume settings to maintain consistency across different patches.
2Manufacturing precision
If correction settings are added to adjust volume according to volume feeling, then the volume consistency is improved, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing correction amounts for different patches in advance. The information processor retrieves these pre-computed correction amounts when switching patches, avoiding the need for real-time complex calculations and reducing the operational burden on the device.
Solution Approach 2:
The patent introduces an intermediary element - the correction amount - that mediates between the base volume setting and the final output volume. This intermediary layer simplifies the control structure by separating the base volume configuration from the patch-specific adjustments, making the system more manageable despite the added functionality.
3Manufacturing precision
If the volume is adjusted based on sound settings, then the auditory volume feeling becomes consistent, but the processing time increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating correction amounts for different patch combinations of sound sources and settings. When a patch is selected, the information processor quickly retrieves the corresponding correction amount without performing complex real-time calculations, significantly reducing processing time while maintaining volume consistency.
Solution Approach 2:
The patent applies partial action by focusing the processing effort only on calculating and applying the volume correction amount, rather than re-processing all sound parameters. This selective approach reduces the computational burden and processing time while achieving the specific goal of volume consistency.
Data Source
AI summary
A volume control device includes at least one information processor configured to: acquire a sound setting related to a sound output based on sound source information; and generate a sound output signal from the acquired sound source information on the basis of the sound setting, in which the sound setting includes a volume setting that defines a volume and a correction setting related to a correction amount of the volume according to a volume feeling of the sound setting, and the information processor is further configured to correct the volume defined in the volume setting with the correction amount to generate the sound output signal.